Wkipedia has an article Signal (software).

Signal is an encrypted instant messaging and voice calling application for Android and iOS. It uses the Internet to send one-to-one and group messages, which can include images and video messages, and make one-to-one voice calls.

In one of the last two posts, I believe one of the interviewees mentioned Signal as an encryption app. I think it was either Seymour Hersh or Glen Greenwald. In any case, I thought it might be good to provide the link to find out more about what they were talking about.

Democracy Now has the article and video Greenwald: Empowering the “Deep State” to Undermine Trump is Prescription for Destroying Democracy.

GLENN GREENWALD: The deep state, although there’s no precise or scientific definition, generally refers to the agencies in Washington that are permanent power factions. They stay and exercise power even as presidents who are elected come and go. They typically exercise their power in secret, in the dark, and so they’re barely subject to democratic accountability, if they’re subject to it at all. It’s agencies like the CIA, the NSA and the other intelligence agencies, that are essentially designed to disseminate disinformation and deceit and propaganda, and have a long history of doing not only that, but also have a long history of the world’s worst war crimes, atrocities and death squads. This is who not just people like Bill Kristol, but lots of Democrats are placing their faith in, are trying to empower, are cheering for as they exert power separate and apart from—in fact, in opposition to—the political officials to whom they’re supposed to be subordinate.

The Intercept has the article and video clip Seymour Hersh Blasts Media for Uncritically Promoting Russian Hacking Story.

Pulitzer Prize-winning journalist Seymour Hersh said in an interview that he does not believe the U.S. intelligence community proved its case that President Vladimir Putin directed a hacking campaign aimed at securing the election of Donald Trump. He blasted news organizations for lazily broadcasting the assertions of U.S. intelligence officials as established facts.

The material above is the main point of the article, but I also wanted to give you the following excerpt which has some wisdom on what we could hope for.

While expressing fears about Trump’s agenda, Hersh also called Trump a potential “circuit breaker” of the two-party political system in the U.S. “The idea of somebody breaking things away, and raising grave doubts about the viability of the party system, particularly the Democratic Party, is not a bad idea,” Hersh said. “That’s something we could build on in the future. But we have to figure out what to do in the next few years.” He added: “I don’t think the notion of democracy is ever going to be as tested as it’s going to be now.”